北亚热带日本落叶松纸浆林经济成熟龄的确定  

Age of Economic Maturity of Larix kaempferi Pulpwood Plantations in Northern Sub-Tropical Alpine Area,China

作　　者：李子敬[1] 孙晓梅[1] 张守攻[1] 陈东升[1] 

机构地区：[1]中国林业科学研究院林业研究所,北京100091

出　　处：《东北林业大学学报》2011年第8期1-4,共4页Journal of Northeast Forestry University

基　　金：林业公益性行业科研专项(201104027)

摘　　要：为了更加科学地采伐利用北亚热带高山区日本落叶松(Larix kaempferi)工业纸浆林,利用改进后的折现流(Discounted Cash Flow)方法,分析评价了日本落叶松的经济效益,确定了日本落叶松的经济成熟龄,并在经济因素预期变化趋势下得出了日本落叶松的预期经济成熟龄。研究结果表明:立地指数为151、7、19和21的北亚热带日本落叶松纸浆林的经济成熟龄分别为23～27、21～23、19～22、15～19 a;在预期的经济因素变化条件下,可适当延迟经济轮伐期1～2 a。The economic benefit of Larix kaempferi was analyzed by the improved discounted cash flow method in order to realize the scientific management of L. kaempferi pulpwood plantations in northern sub-tropical alpine area. The age of economic maturity of L. kaempferi pulpwood plantation was determined, and the expected age of economic maturity was obtained under the conditions of the expected changes in economic factors. Result shows that the ages of economic maturity of L.kaempferi grown at site index 15, 17, 19, 21 are 23-27, 21-23,19-22,15-19 years respectively, and the age of economic maturity should be deferred for 1-2 years under the conditions of the expected economic factors.

关 键 词：日本落叶松 经济成熟龄 净现值 土地期望值 内部收益率 

分 类 号：S757.44[农业科学—森林经理学]